Breathable Cotton Undershirt with Lab-Verified Comfort
- 100% cotton jersey knit (Oeko-Tex Standard 100 #HK-12345)
- 220 GSM fabric weight (±5% tolerance)
Technical Validation
✓ Comfort Features
- Airflow: 600 L/m²/s (ISO 9237 tested)
- Moisture management: 2.8s absorption time (AATCC 79)
- Seam construction: Flatlock stitching (EN ISO 4915)
Sizing & Fit
- Chest range: S-4XL
- Shoulder width: 22" with ±2" tolerance
- Hem length: 28"-32" (height 5'5"-6'3")
Care & Durability
- 50+ wash cycles (color fade ≤ΔE 2 per AATCC 61)
- Machine wash warm (40°C max)
- No fabric softeners (preserves wicking)
Certifications
- Oeko-Tex Standard 100 (Certificate #HK-12345)
- CPSIA lead/cadmium compliant
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